IB DP Biology: HL复习笔记2.1.3 Hydrogen Bonds
Hydrogen Bonds Hydrogen bonding plays an important role between many biological molecules Some key functions include: Dissolving of solutes?in water The?cohesion?and?adhesion?of water molecules The...
IB DP Biology: HL复习笔记2.1.2 Metabolism
Metabolism Metabolism?is a catch-all term used to describe?all the chemical reactions?that take place within cells and organisms Metabolism can be thought of as?the chemical reactions of life The m...
IB DP Biology: HL复习笔记2.1.1 Molecules
Molecular Biology The substances of life There are?118 elements?in the Periodic Table Only the first?92 elements occur in Nature?; the rest are artificially-synthesised in laboratories and are very...
Edexcel IGCSE Geography 复习笔记 3.2.2 Vulnerability to Natural Hazards
Edexcel IGCSE Geography 复习笔记 3.2.2 Vulnerability to Natural Hazards Vulnerability of Countries Some countries/areas/people are more vulnerable to natural hazards than others A range of factors ...
Edexcel IGCSE Geography 复习笔记 3.2.1 Living in Hazardous Areas
Edexcel IGCSE Geography 复习笔记 3.2.1 Living in Hazardous Areas Reasons for Living in Hazardous Regions Billions of people live in areas which are vulnerable to natural events such as earthquakes,...
IB DP Biology: HL复习笔记1.4.4 Skills: Cell Division
Mitotic Phases: Identification Cells undergoing different stages of the cell cycle can be identified using photomicrographs taken from microscope slides Cells undergoing certain stages of the cell ...
Edexcel IGCSE Geography 复习笔记 3.1.2 Tropical Cyclones
Edexcel IGCSE Geography 复习笔记 3.1.2 Tropical Cyclones Causes of Tropical Cyclone Hazards Low pressure?areas (less than 950mb) Tropical Cyclones require specific conditions to form: Sea surface t...
Edexcel IGCSE Geography 复习笔记 3.1.1 Types of Hazards
Edexcel IGCSE Geography 复习笔记 3.1.1 Types of Hazards Anatomy of Natural Hazards Natural Hazards A?hazard?is an event which has the potential to cause harm to the environment, people or the econo...
IB DP Biology: HL复习笔记1.4.3 Cancer
Tumour Formation Cancers demonstrate how important it is that?cell division?is?precisely controlled, as cancers arise due to?uncontrolled mitosis Cancerous cells divide repeatedly and uncontrollabl...
